FZUS52 KJAX 212149
CWFJAX
Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
449 PM EST Sun Dec 21 2025
Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach
FL out to 60 nm.
Seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.
AMZ400-221300-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
449 PM EST Sun Dec 21 2025
.SYNOPSIS...
A cold front will move across area waters this evening, with a high
pressure ridge building southward tonight and through Monday. Small
Craft Advisory conditions will be expected beginning late tonight,
persisting through Monday Evening before subsiding from northwest to
southeast. The ridging will weaken on Tuesday as another weak front
moves towards area waters Tuesday Night, sinking south of the region
Wednesday. Rather weak high pressure will then return by Thursday,
slowly dropping south of area waters by the start of next weekend.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Dec 21, 2025 at 0000 UTC...
50 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
76 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ452-454-221300-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
449 PM EST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 knots
after midnight. Seas 3 to 4 feet, occasionally to 5 feet,
building to 4 to 6 feet, occasionally to 8 feet after midnight.
Wave Detail: Northeast 3 feet at 4 seconds and east 2 feet at 9
seconds, becoming northeast 5 feet at 5 seconds and east 2 feet at
10 seconds. Intracoastal waters choppy.
.MONDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 6 seconds and east
2 feet at 10 seconds. Intracoastal waters rough. A slight chance
of showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
in the evening.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds.
Intracoastal waters light chop.
.TUESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 9 seconds. Intracoastal waters smooth.
.WEDNESDAY AND WEDNESDAY NIGHT...Northwest winds around 5 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East
4 feet at 9 seconds. Intracoastal waters smooth.
.THURSDAY THROUGH FRIDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop.
$$
AMZ470-472-474-221300-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
449 PM EST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
TUESDAY MORNING...
.TONIGHT...North winds 15 to 20 knots, becoming northeast 20 to
25 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet, building to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: North 3 feet at 4 seconds and east 3 feet
at 9 seconds, becoming northeast 6 feet at 6 seconds and east
3 feet at 10 seconds.
.MONDAY...Northeast winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 7 feet at
7 seconds and east 3 feet at 10 seconds. A slight chance of
showers.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 8 seconds. A
slight chance of showers in the evening.
.TUESDAY...Southeast winds 10 to 15 knots, becoming south around
5 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 7 feet at 9 seconds.
.TUESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 5 feet at 9 seconds.
.WEDNESDAY AND WEDNESDAY NIGHT...Northwest winds 5 to 10 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East
5 feet at 9 seconds.
.THURSDAY THROUGH FRIDAY...West winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet.
$$
AMZ450-221300-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
449 PM EST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 knots
after midnight. Seas 2 to 3 feet, building to 3 to 5 feet,
occasionally to 6 feet after midnight. Wave Detail:
Northeast 2 feet at 4 seconds and east 2 feet at 9 seconds,
becoming northeast 5 feet at 5 seconds and east 2 feet at
10 seconds. Intracoastal waters choppy.
.MONDAY...Northeast winds 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds
and east 4 feet at 10 seconds. Intracoastal waters choppy.
.MONDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Intracoastal
waters a moderate chop.
.TUESDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 9 seconds. Intracoastal waters light chop.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming west
around 5 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal
waters smooth.
.WEDNESDAY AND WEDNESDAY NIGHT...West winds around 5 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal
waters smooth.
.THURSDAY THROUGH FRIDAY...Southwest winds 5 to 10 knots. Seas
2 to 3 feet. Intracoastal waters light chop.
$$
CWFJAX
Coastal Waters Forecast for Northeast Florida/Southeast Georgia
National Weather Service Jacksonville FL
449 PM EST Sun Dec 21 2025
Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach
FL out to 60 nm.
Seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.
AMZ400-221300-
Synopsis for Altamaha Sound GA to Flagler Beach FL out to 60 nm-
449 PM EST Sun Dec 21 2025
.SYNOPSIS...
A cold front will move across area waters this evening, with a high
pressure ridge building southward tonight and through Monday. Small
Craft Advisory conditions will be expected beginning late tonight,
persisting through Monday Evening before subsiding from northwest to
southeast. The ridging will weaken on Tuesday as another weak front
moves towards area waters Tuesday Night, sinking south of the region
Wednesday. Rather weak high pressure will then return by Thursday,
slowly dropping south of area waters by the start of next weekend.
.GULF STREAM...
The approximate location of the west wall of the Gulf Stream as of
Dec 21, 2025 at 0000 UTC...
50 nautical miles east of Flagler Beach.
58 nautical miles east of Saint Augustine Beach.
70 nautical miles east southeast of Jacksonville Beach.
76 nautical miles east southeast of St Simons Island.
This data derived from NCEP Global RTOFS model.
$$
AMZ452-454-221300-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
449 PM EST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 knots
after midnight. Seas 3 to 4 feet, occasionally to 5 feet,
building to 4 to 6 feet, occasionally to 8 feet after midnight.
Wave Detail: Northeast 3 feet at 4 seconds and east 2 feet at 9
seconds, becoming northeast 5 feet at 5 seconds and east 2 feet at
10 seconds. Intracoastal waters choppy.
.MONDAY...Northeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 5 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 6 seconds and east
2 feet at 10 seconds. Intracoastal waters rough. A slight chance
of showers in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 8 seconds.
Intracoastal waters a moderate chop. A slight chance of showers
in the evening.
.TUESDAY...Southeast winds 5 to 10 knots. Seas 5 to 6 feet,
occasionally to 8 feet. Wave Detail: East 6 feet at 9 seconds.
Intracoastal waters light chop.
.TUESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 9 seconds. Intracoastal waters smooth.
.WEDNESDAY AND WEDNESDAY NIGHT...Northwest winds around 5 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: East
4 feet at 9 seconds. Intracoastal waters smooth.
.THURSDAY THROUGH FRIDAY...Southwest winds 10 to 15 knots. Seas
2 to 3 feet. Intracoastal waters a moderate chop.
$$
AMZ470-472-474-221300-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
449 PM EST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
TUESDAY MORNING...
.TONIGHT...North winds 15 to 20 knots, becoming northeast 20 to
25 knots after midnight. Seas 3 to 5 feet, occasionally to
6 feet, building to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: North 3 feet at 4 seconds and east 3 feet
at 9 seconds, becoming northeast 6 feet at 6 seconds and east
3 feet at 10 seconds.
.MONDAY...Northeast winds 20 to 25 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: Northeast 7 feet at
7 seconds and east 3 feet at 10 seconds. A slight chance of
showers.
.MONDAY NIGHT...East winds 15 to 20 knots. Seas 6 to 8 feet,
occasionally to 10 feet. Wave Detail: East 8 feet at 8 seconds. A
slight chance of showers in the evening.
.TUESDAY...Southeast winds 10 to 15 knots, becoming south around
5 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet. Wave Detail: East 7 feet at 9 seconds.
.TUESDAY NIGHT...South winds around 5 knots, becoming west after
midnight. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail:
East 5 feet at 9 seconds.
.WEDNESDAY AND WEDNESDAY NIGHT...Northwest winds 5 to 10 knots.
Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East
5 feet at 9 seconds.
.THURSDAY THROUGH FRIDAY...West winds 10 to 15 knots. Seas 2 to
4 feet, occasionally to 5 feet.
$$
AMZ450-221300-
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
449 PM EST Sun Dec 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST MONDAY THROUGH
MONDAY AFTERNOON...
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 20 knots
after midnight. Seas 2 to 3 feet, building to 3 to 5 feet,
occasionally to 6 feet after midnight. Wave Detail:
Northeast 2 feet at 4 seconds and east 2 feet at 9 seconds,
becoming northeast 5 feet at 5 seconds and east 2 feet at
10 seconds. Intracoastal waters choppy.
.MONDAY...Northeast winds 20 knots. Seas 4 to 6 feet,
occasionally to 8 feet. Wave Detail: Northeast 6 feet at 7 seconds
and east 4 feet at 10 seconds. Intracoastal waters choppy.
.MONDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
5 to 10 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet. Wave Detail: Northeast 6 feet at 7 seconds. Intracoastal
waters a moderate chop.
.TUESDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail:
East 5 feet at 9 seconds. Intracoastal waters light chop.
.TUESDAY NIGHT...Southwest winds around 5 knots, becoming west
around 5 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet. Wave Detail: East 4 feet at 9 seconds. Intracoastal
waters smooth.
.WEDNESDAY AND WEDNESDAY NIGHT...West winds around 5 knots. Seas
2 to 3 feet. Wave Detail: East 3 feet at 9 seconds. Intracoastal
waters smooth.
.THURSDAY THROUGH FRIDAY...Southwest winds 5 to 10 knots. Seas
2 to 3 feet. Intracoastal waters light chop.
$$